Battery terminal



A. F. HAWKINS. BATTERY TERMINAL. APPLICATION FILED AUG.2, 19I9- 1,400, 59 Patented Dec. 13,- 1921.

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A. F. HAWKINS. BATTERY TERMINAL. APPLICATION FILED A, 2

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Patented Dec. 13, 1921. I 2

ALBA r. HAwKINs; 0s rorvr'wonrr mEXAs', AssreNoR-rosrANnARnjBA'rTERi MANUFACTURING ooivrrANY; or I FORT'AWORTH? TEXAS,"*A c0ItPoItAT1oN foF TEXAS.

To all whom it may concern Be it known that I, ALBA a citizen of the United States, residing at Fort WVorth, in the county of Tarrant and State of Texas. have invented certain new and useful Improvements in Battery Terminals, of which the following is a specifi cation. 5

This invention relates to new and useful im rovements in battery terminals.-

torage or secondary battery terminals are usually made'of soft metal; and are fastened to hard rubber covers. It is therefore obvious that the fastening must be simple and have a minimum movement;

otherwise the soft metal parts would soon wear and become inoperative. Tests made with screw threads show that 'a very quick thread must be usedjand such threads are difficult and expensive to cast.

I have conceived the idea of employing a nut or fastening member and a post recessed to receive the nut so thattheparts' are fastened by a wedging action given by less than a quarter of the nut and are easily unfastened. i 7 v The invention" will be more readilyunderstood from a readingof the following s'pecification and by reference to the accompanying drawings, in which an'example of the,

. rotation is necessary to I invention is shown, and wherein:

Figure 1 is a plan view of a fastening em bodying one form of the invention, 7

Fig. 2 is a sideelevation; of the same, Fig. 3 is a vertical sectional view, Fig. 4v is a plan view of the nut,

a Fig. 5 is -a cross-sectional detail on line 55 of Fig. 4.

Fig. 6 is a plan-view of a modified form of fastening, v p r g Fig. 7 is an elevation of the same, V

Fig. 8 1s a vertical sectional view;

and

Fig. line 101O of Fig. 9.

In the drawings the numeral 1 designates a cover plate which is usually formed of hard rubber or equivalent material. The

cover has a circular opening 2 for receiving a metal terminal post 3 which latter is con- Specification 'of Letters Patent.

F. HAWKINS.

when the nut is turned to moved and is also the post.

modified formof e the inclined webs 13 and the .marginal flange 14- are omitted, thus giving the nut thesame is the same. The 1 underfac'es" of the lugs ,9 are 5 Fig. 9 is a plan view of the modified nut,

10 is a cross-sectional view on the.

nected with a terminal plate 4- under the cover. The base 5 of the post'is cylindrical. and receives a soft 'rubber washer GJWhich l is interposed between the plate 4 and the cover and prevents the fluid spilling out 4 around the post. r

P atentedDecrl 1923;..1 7 Application filed August 2,1919. Seria1 No.314 ,9 84. 7'

Above the base the post is cut away each side to provide flat faces7, above which latter the post is reduced? indiameter and tapered. y v The post at right angles to its fiat faces- F 7 has recesses 8 which provide overhanging lugs 9. The recesses in juxtaposition to the top of the cover. .fA

circular nut 10 is provided with knobs 11 on its periphery aifordingian efficient finger grip. The nuthas an elongated slot .12

shaped to receive the fiat *portionofthe I I At each side of the slot the nut has countersunk inclined ost and rest on'the cover 1.

webs 13 contiguous to the flat faces 7 when the nut is first placed on the post;

The websare oppositely inclined V g the right diagonally opposite edges of the lugs 9 will ride have'their lower edges 1 fe so that 1 onto the lowest endsnofthe webs and the latter will be receivedinto the recesses 8: as; {f the rotation is continued.- The webs incline up to and mergeinto the surfacev ofthe nut,

a one-eighth of a wedge the'xnut It will be seen that as the nut Uusually not" more than the recess. e is turned it has a tendency. to bear 'down'on the top surface of the cover which is resili v entlysupported by the rubber washerfir j;

The; nutmay be. quickly put on .o'r11' e ginal flange In Figs. 6, to 10 fastening; In this form thickness throughout. The slot 12 easy and cheap ;to cast, as ls The nut. hasan annularinar; I .1 17 which lends. strength and! body to thesame. i

inclusive I have shown i 7 i beveled at diagonally opposite corners of" i the posts, center of placing the it a slight rotation, its

the lug. It will be seen thatvby more desirable in some instances. 7

What I claim, is:

In a battery terminal fastening, a terminal post having lugs and flat sides connecting the lugs, and a nut having a slot shaped to receive the lugs and pass down the flat nut and lugs are wedged together when the v nut is turned and swungunder thelugs.

Inv testimony whereof I aflix m y signature.

' ALDA F. HAWKINS. 

